whats wrong with me?

I feel like there is something wrong with me lately. I don't feel energetic and I feel drained. I have kind of lost the ability to be happy. When I am at school I smile and laugh for the sake of others but really I just want to go home and crawl in my bed. Sometimes I am happy so I do express it and things like that but to be truthful I just want to stay asleep sometimes, where there is nothing just darkness. Sometimes I wonder is that what it feels like to be dead?! I am not thinking suicidal thoughts but I think if there was a fire in my house I wouldn't rush to get out. I am kind of sick of everything right now and I don't bother to get angry anymore. I hate my body, I hate myself(some parts, its like a love hate relationship), I hate boys, I am actually kind of hating people in general and I hate school the most!!! I am sick of being here in general, I feel nothing good happens in my life, nothing happy, nothing that would surprise me and make me happy. Sometimes some things do but really I am just lost for the rest of the time. For my birthday I did kind of enjoy myself but at the end of the day I kind of lost interest in it. It felt like on my birthday it was one of those tolerant days but as soon as the clock struck 12 I sprain my ankle haha I am seriously not sure what to think anymore. I know I am soon going to explode keeping everything in. Everyday seems like the same thing now and I hate it! I am frustrated with myself cause I don't know what's wrong with me and I really want to know how to fix this! Right now I want to lie in bed and cry, just cry.